avalanche on Henderson Mtn.

Henderson Mountain
Cooke City
Code
SS-R3-D2-O
Elevation
9900
Aspect
SE
Latitude
45.05240
Longitude
-109.94500
Notes

From email "Observed a fresh slab avalanche on Mt. Henderson this morning.  E, SE aspect, 9,900'. I skied up to  investigate it and would estimate the size of the crown to be 2-4' deep and about 80' wide. Somewhat surprised by the size relative to the starting zone. Likely a natural avalanche (from about 36 hrs ago), but there were fresh sled tracks in the vicinity from yesterday, so possibly a remote trigger."

Number of slides
1
Number caught
0
Number buried
0
Avalanche Type
Soft slab avalanche
R size
3
D size
2
Bed Surface
O - Old snow
Problem Type
Persistent Weak Layer
Slab Thickness
36.0 inches
Vertical Fall
500ft
Slab Width
80.00ft
Snow Observation Source
Slab Thickness units
inches
Single / Multiple / Red Flag
Single Avalanche
Advisory Year